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Finding the Fourth Proportional to 98,252.72, 147,255.72 and 42,026.70

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Solution

The fourth proportional to 98,252.72, 147,255.72 and 42,026.70 is: 62,987.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,252.72 : 147,255.72 = 42,026.70 : x
  2. Step 2: Convert to fraction form
    98,252.72/147,255.72 = 42,026.70/x
  3. Step 3: Cross multiply
    98,252.72x = 147,255.72 × 42,026.70
  4. Step 4: Simplify right side
    98,252.72x = 6,188,671,967.72
  5. Step 5: Solve for x
    x = 6,188,671,967.72/98,252.72
  6. Step 6: Final answer
    x = 62,987.28

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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.