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Finding the Fourth Proportional to 65,115.30, 97,672.95 and 49,368.90

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Solution

The fourth proportional to 65,115.30, 97,672.95 and 49,368.90 is: 74,053.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,115.30 : 97,672.95 = 49,368.90 : x
  2. Step 2: Convert to fraction form
    65,115.30/97,672.95 = 49,368.90/x
  3. Step 3: Cross multiply
    65,115.30x = 97,672.95 × 49,368.90
  4. Step 4: Simplify right side
    65,115.30x = 4,822,006,101.26
  5. Step 5: Solve for x
    x = 4,822,006,101.26/65,115.30
  6. Step 6: Final answer
    x = 74,053.35

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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.