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Finding the Fourth Proportional to 124,625.99, 186,641.01 and 71,875.55

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Solution

The fourth proportional to 124,625.99, 186,641.01 and 71,875.55 is: 107,641.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,625.99 : 186,641.01 = 71,875.55 : x
  2. Step 2: Convert to fraction form
    124,625.99/186,641.01 = 71,875.55/x
  3. Step 3: Cross multiply
    124,625.99x = 186,641.01 × 71,875.55
  4. Step 4: Simplify right side
    124,625.99x = 13,414,925,712.91
  5. Step 5: Solve for x
    x = 13,414,925,712.91/124,625.99
  6. Step 6: Final answer
    x = 107,641.48

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1.5x scale

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.