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Finding the Fourth Proportional to 157,488.40, 236,232.60 and 57,615.40

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Solution

The fourth proportional to 157,488.40, 236,232.60 and 57,615.40 is: 86,423.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,488.40 : 236,232.60 = 57,615.40 : x
  2. Step 2: Convert to fraction form
    157,488.40/236,232.60 = 57,615.40/x
  3. Step 3: Cross multiply
    157,488.40x = 236,232.60 × 57,615.40
  4. Step 4: Simplify right side
    157,488.40x = 13,610,635,742.04
  5. Step 5: Solve for x
    x = 13,610,635,742.04/157,488.40
  6. Step 6: Final answer
    x = 86,423.10

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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.