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Finding the Fourth Proportional to 110,412.72, 152,360.64 and 62,657.28

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Solution

The fourth proportional to 110,412.72, 152,360.64 and 62,657.28 is: 86,461.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,412.72 : 152,360.64 = 62,657.28 : x
  2. Step 2: Convert to fraction form
    110,412.72/152,360.64 = 62,657.28/x
  3. Step 3: Cross multiply
    110,412.72x = 152,360.64 × 62,657.28
  4. Step 4: Simplify right side
    110,412.72x = 9,546,503,281.46
  5. Step 5: Solve for x
    x = 9,546,503,281.46/110,412.72
  6. Step 6: Final answer
    x = 86,461.99

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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.