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Finding the Fourth Proportional to 147,658.76, 203,758.51 and 83,124.66

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Solution

The fourth proportional to 147,658.76, 203,758.51 and 83,124.66 is: 114,706.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,658.76 : 203,758.51 = 83,124.66 : x
  2. Step 2: Convert to fraction form
    147,658.76/203,758.51 = 83,124.66/x
  3. Step 3: Cross multiply
    147,658.76x = 203,758.51 × 83,124.66
  4. Step 4: Simplify right side
    147,658.76x = 16,937,356,865.86
  5. Step 5: Solve for x
    x = 16,937,356,865.86/147,658.76
  6. Step 6: Final answer
    x = 114,706.08

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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.