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Finding the Fourth Proportional to 86,594.55, 120,937.13 and 86,594.55

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Solution

The fourth proportional to 86,594.55, 120,937.13 and 86,594.55 is: 120,937.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,594.55 : 120,937.13 = 86,594.55 : x
  2. Step 2: Convert to fraction form
    86,594.55/120,937.13 = 86,594.55/x
  3. Step 3: Cross multiply
    86,594.55x = 120,937.13 × 86,594.55
  4. Step 4: Simplify right side
    86,594.55x = 10,472,495,917.67
  5. Step 5: Solve for x
    x = 10,472,495,917.67/86,594.55
  6. Step 6: Final answer
    x = 120,937.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.