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Finding the Fourth Proportional to 157,810.60, 236,715.90 and 98,828.20

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Solution

The fourth proportional to 157,810.60, 236,715.90 and 98,828.20 is: 148,242.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,810.60 : 236,715.90 = 98,828.20 : x
  2. Step 2: Convert to fraction form
    157,810.60/236,715.90 = 98,828.20/x
  3. Step 3: Cross multiply
    157,810.60x = 236,715.90 × 98,828.20
  4. Step 4: Simplify right side
    157,810.60x = 23,394,206,308.38
  5. Step 5: Solve for x
    x = 23,394,206,308.38/157,810.60
  6. Step 6: Final answer
    x = 148,242.30

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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.