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Finding the Fourth Proportional to 316,900.14, 437,332.85 and 173,658.93

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Solution

The fourth proportional to 316,900.14, 437,332.85 and 173,658.93 is: 239,655.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,900.14 : 437,332.85 = 173,658.93 : x
  2. Step 2: Convert to fraction form
    316,900.14/437,332.85 = 173,658.93/x
  3. Step 3: Cross multiply
    316,900.14x = 437,332.85 × 173,658.93
  4. Step 4: Simplify right side
    316,900.14x = 75,946,754,784.85
  5. Step 5: Solve for x
    x = 75,946,754,784.85/316,900.14
  6. Step 6: Final answer
    x = 239,655.16

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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.