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Finding the Fourth Proportional to 207,276.02, 310,913.96 and 74,148.20

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Solution

The fourth proportional to 207,276.02, 310,913.96 and 74,148.20 is: 111,222.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,276.02 : 310,913.96 = 74,148.20 : x
  2. Step 2: Convert to fraction form
    207,276.02/310,913.96 = 74,148.20/x
  3. Step 3: Cross multiply
    207,276.02x = 310,913.96 × 74,148.20
  4. Step 4: Simplify right side
    207,276.02x = 23,053,710,488.87
  5. Step 5: Solve for x
    x = 23,053,710,488.87/207,276.02
  6. Step 6: Final answer
    x = 111,222.27

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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.