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Finding the Fourth Proportional to 98,045.66, 147,117.11 and 38,880.02

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Solution

The fourth proportional to 98,045.66, 147,117.11 and 38,880.02 is: 58,339.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,045.66 : 147,117.11 = 38,880.02 : x
  2. Step 2: Convert to fraction form
    98,045.66/147,117.11 = 38,880.02/x
  3. Step 3: Cross multiply
    98,045.66x = 147,117.11 × 38,880.02
  4. Step 4: Simplify right side
    98,045.66x = 5,719,916,352.53
  5. Step 5: Solve for x
    x = 5,719,916,352.53/98,045.66
  6. Step 6: Final answer
    x = 58,339.31

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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.