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Finding the Fourth Proportional to 316,349.71, 436,562.59 and 173,109.77

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Solution

The fourth proportional to 316,349.71, 436,562.59 and 173,109.77 is: 238,891.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,349.71 : 436,562.59 = 173,109.77 : x
  2. Step 2: Convert to fraction form
    316,349.71/436,562.59 = 173,109.77/x
  3. Step 3: Cross multiply
    316,349.71x = 436,562.59 × 173,109.77
  4. Step 4: Simplify right side
    316,349.71x = 75,573,249,545.50
  5. Step 5: Solve for x
    x = 75,573,249,545.50/316,349.71
  6. Step 6: Final answer
    x = 238,891.48

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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.