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Finding the Fourth Proportional to 127,387.88, 175,790.96 and 70,798.04

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Solution

The fourth proportional to 127,387.88, 175,790.96 and 70,798.04 is: 97,698.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,387.88 : 175,790.96 = 70,798.04 : x
  2. Step 2: Convert to fraction form
    127,387.88/175,790.96 = 70,798.04/x
  3. Step 3: Cross multiply
    127,387.88x = 175,790.96 × 70,798.04
  4. Step 4: Simplify right side
    127,387.88x = 12,445,655,417.72
  5. Step 5: Solve for x
    x = 12,445,655,417.72/127,387.88
  6. Step 6: Final answer
    x = 97,698.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.