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Finding the Fourth Proportional to 176,404.68, 243,384.78 and 99,911.64

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Solution

The fourth proportional to 176,404.68, 243,384.78 and 99,911.64 is: 137,847.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,404.68 : 243,384.78 = 99,911.64 : x
  2. Step 2: Convert to fraction form
    176,404.68/243,384.78 = 99,911.64/x
  3. Step 3: Cross multiply
    176,404.68x = 243,384.78 × 99,911.64
  4. Step 4: Simplify right side
    176,404.68x = 24,316,972,520.84
  5. Step 5: Solve for x
    x = 24,316,972,520.84/176,404.68
  6. Step 6: Final answer
    x = 137,847.66

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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.