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Finding the Fourth Proportional to 124,369.62, 171,630.66 and 70,657.58

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Solution

The fourth proportional to 124,369.62, 171,630.66 and 70,657.58 is: 97,507.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,369.62 : 171,630.66 = 70,657.58 : x
  2. Step 2: Convert to fraction form
    124,369.62/171,630.66 = 70,657.58/x
  3. Step 3: Cross multiply
    124,369.62x = 171,630.66 × 70,657.58
  4. Step 4: Simplify right side
    124,369.62x = 12,127,007,089.40
  5. Step 5: Solve for x
    x = 12,127,007,089.40/124,369.62
  6. Step 6: Final answer
    x = 97,507.79

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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.