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Finding the Fourth Proportional to 98,389.48, 147,584.28 and 42,193.32

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Solution

The fourth proportional to 98,389.48, 147,584.28 and 42,193.32 is: 63,290.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,389.48 : 147,584.28 = 42,193.32 : x
  2. Step 2: Convert to fraction form
    98,389.48/147,584.28 = 42,193.32/x
  3. Step 3: Cross multiply
    98,389.48x = 147,584.28 × 42,193.32
  4. Step 4: Simplify right side
    98,389.48x = 6,227,070,753.01
  5. Step 5: Solve for x
    x = 6,227,070,753.01/98,389.48
  6. Step 6: Final answer
    x = 63,290.01

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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.