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Finding the Fourth Proportional to 73,812,124.80, 110,718,187.20 and 30,666,988.80

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Solution

The fourth proportional to 73,812,124.80, 110,718,187.20 and 30,666,988.80 is: 46,000,483.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,812,124.80 : 110,718,187.20 = 30,666,988.80 : x
  2. Step 2: Convert to fraction form
    73,812,124.80/110,718,187.20 = 30,666,988.80/x
  3. Step 3: Cross multiply
    73,812,124.80x = 110,718,187.20 × 30,666,988.80
  4. Step 4: Simplify right side
    73,812,124.80x = 3,395,393,406,818,703.50
  5. Step 5: Solve for x
    x = 3,395,393,406,818,703.50/73,812,124.80
  6. Step 6: Final answer
    x = 46,000,483.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.