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Finding the Fourth Proportional to 124,129.92, 171,307.44 and 70,396.32

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Solution

The fourth proportional to 124,129.92, 171,307.44 and 70,396.32 is: 97,151.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,129.92 : 171,307.44 = 70,396.32 : x
  2. Step 2: Convert to fraction form
    124,129.92/171,307.44 = 70,396.32/x
  3. Step 3: Cross multiply
    124,129.92x = 171,307.44 × 70,396.32
  4. Step 4: Simplify right side
    124,129.92x = 12,059,413,364.62
  5. Step 5: Solve for x
    x = 12,059,413,364.62/124,129.92
  6. Step 6: Final answer
    x = 97,151.54

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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.