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Finding the Fourth Proportional to 315,656.07, 473,508.81 and 105,293.81

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Solution

The fourth proportional to 315,656.07, 473,508.81 and 105,293.81 is: 157,948.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,656.07 : 473,508.81 = 105,293.81 : x
  2. Step 2: Convert to fraction form
    315,656.07/473,508.81 = 105,293.81/x
  3. Step 3: Cross multiply
    315,656.07x = 473,508.81 × 105,293.81
  4. Step 4: Simplify right side
    315,656.07x = 49,857,544,305.92
  5. Step 5: Solve for x
    x = 49,857,544,305.92/315,656.07
  6. Step 6: Final answer
    x = 157,948.95

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Why These Related Problems?

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