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Finding the Fourth Proportional to 112,698.84, 155,524.40 and 62,397.84

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Solution

The fourth proportional to 112,698.84, 155,524.40 and 62,397.84 is: 86,109.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,698.84 : 155,524.40 = 62,397.84 : x
  2. Step 2: Convert to fraction form
    112,698.84/155,524.40 = 62,397.84/x
  3. Step 3: Cross multiply
    112,698.84x = 155,524.40 × 62,397.84
  4. Step 4: Simplify right side
    112,698.84x = 9,704,387,483.50
  5. Step 5: Solve for x
    x = 9,704,387,483.50/112,698.84
  6. Step 6: Final answer
    x = 86,109.02

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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.