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Finding the Fourth Proportional to 113,693.68, 170,658.80 and 83,741.74

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Solution

The fourth proportional to 113,693.68, 170,658.80 and 83,741.74 is: 125,699.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,693.68 : 170,658.80 = 83,741.74 : x
  2. Step 2: Convert to fraction form
    113,693.68/170,658.80 = 83,741.74/x
  3. Step 3: Cross multiply
    113,693.68x = 170,658.80 × 83,741.74
  4. Step 4: Simplify right side
    113,693.68x = 14,291,264,005.02
  5. Step 5: Solve for x
    x = 14,291,264,005.02/113,693.68
  6. Step 6: Final answer
    x = 125,699.72

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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.