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Finding the Fourth Proportional to 315,585.26, 473,275.65 and 105,166.70

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Solution

The fourth proportional to 315,585.26, 473,275.65 and 105,166.70 is: 157,715.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,585.26 : 473,275.65 = 105,166.70 : x
  2. Step 2: Convert to fraction form
    315,585.26/473,275.65 = 105,166.70/x
  3. Step 3: Cross multiply
    315,585.26x = 473,275.65 × 105,166.70
  4. Step 4: Simplify right side
    315,585.26x = 49,772,838,300.86
  5. Step 5: Solve for x
    x = 49,772,838,300.86/315,585.26
  6. Step 6: Final answer
    x = 157,715.98

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.