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Finding the Fourth Proportional to 147,342.80, 220,980.96 and 47,483.84

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Solution

The fourth proportional to 147,342.80, 220,980.96 and 47,483.84 is: 71,215.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,342.80 : 220,980.96 = 47,483.84 : x
  2. Step 2: Convert to fraction form
    147,342.80/220,980.96 = 47,483.84/x
  3. Step 3: Cross multiply
    147,342.80x = 220,980.96 × 47,483.84
  4. Step 4: Simplify right side
    147,342.80x = 10,493,024,547.69
  5. Step 5: Solve for x
    x = 10,493,024,547.69/147,342.80
  6. Step 6: Final answer
    x = 71,215.05

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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.