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Finding the Fourth Proportional to 176,474.10, 243,521.47 and 99,994.71

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Solution

The fourth proportional to 176,474.10, 243,521.47 and 99,994.71 is: 137,985.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,474.10 : 243,521.47 = 99,994.71 : x
  2. Step 2: Convert to fraction form
    176,474.10/243,521.47 = 99,994.71/x
  3. Step 3: Cross multiply
    176,474.10x = 243,521.47 × 99,994.71
  4. Step 4: Simplify right side
    176,474.10x = 24,350,858,771.42
  5. Step 5: Solve for x
    x = 24,350,858,771.42/176,474.10
  6. Step 6: Final answer
    x = 137,985.45

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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.