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Finding the Fourth Proportional to 141,807.60, 212,711.40 and 57,608.10

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Solution

The fourth proportional to 141,807.60, 212,711.40 and 57,608.10 is: 86,412.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,807.60 : 212,711.40 = 57,608.10 : x
  2. Step 2: Convert to fraction form
    141,807.60/212,711.40 = 57,608.10/x
  3. Step 3: Cross multiply
    141,807.60x = 212,711.40 × 57,608.10
  4. Step 4: Simplify right side
    141,807.60x = 12,253,899,602.34
  5. Step 5: Solve for x
    x = 12,253,899,602.34/141,807.60
  6. Step 6: Final answer
    x = 86,412.15

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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.