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Finding the Fourth Proportional to 116,248.62, 160,381.80 and 75,985.60

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Solution

The fourth proportional to 116,248.62, 160,381.80 and 75,985.60 is: 104,833.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,248.62 : 160,381.80 = 75,985.60 : x
  2. Step 2: Convert to fraction form
    116,248.62/160,381.80 = 75,985.60/x
  3. Step 3: Cross multiply
    116,248.62x = 160,381.80 × 75,985.60
  4. Step 4: Simplify right side
    116,248.62x = 12,186,707,302.08
  5. Step 5: Solve for x
    x = 12,186,707,302.08/116,248.62
  6. Step 6: Final answer
    x = 104,833.14

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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.