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Finding the Fourth Proportional to 176,199.86, 243,165.58 and 99,722.90

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Solution

The fourth proportional to 176,199.86, 243,165.58 and 99,722.90 is: 137,623.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,199.86 : 243,165.58 = 99,722.90 : x
  2. Step 2: Convert to fraction form
    176,199.86/243,165.58 = 99,722.90/x
  3. Step 3: Cross multiply
    176,199.86x = 243,165.58 × 99,722.90
  4. Step 4: Simplify right side
    176,199.86x = 24,249,176,817.78
  5. Step 5: Solve for x
    x = 24,249,176,817.78/176,199.86
  6. Step 6: Final answer
    x = 137,623.13

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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.