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Finding the Fourth Proportional to 107,714.70, 148,635 and 62,407.35

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Solution

The fourth proportional to 107,714.70, 148,635 and 62,407.35 is: 86,115.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,714.70 : 148,635 = 62,407.35 : x
  2. Step 2: Convert to fraction form
    107,714.70/148,635 = 62,407.35/x
  3. Step 3: Cross multiply
    107,714.70x = 148,635 × 62,407.35
  4. Step 4: Simplify right side
    107,714.70x = 9,275,916,467.25
  5. Step 5: Solve for x
    x = 9,275,916,467.25/107,714.70
  6. Step 6: Final answer
    x = 86,115.60

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1.5x scale

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.