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Finding the Fourth Proportional to 109,703.74, 151,391.28 and 59,402.62

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Solution

The fourth proportional to 109,703.74, 151,391.28 and 59,402.62 is: 81,975.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,703.74 : 151,391.28 = 59,402.62 : x
  2. Step 2: Convert to fraction form
    109,703.74/151,391.28 = 59,402.62/x
  3. Step 3: Cross multiply
    109,703.74x = 151,391.28 × 59,402.62
  4. Step 4: Simplify right side
    109,703.74x = 8,993,038,677.15
  5. Step 5: Solve for x
    x = 8,993,038,677.15/109,703.74
  6. Step 6: Final answer
    x = 81,975.68

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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.