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Finding the Fourth Proportional to 315,572.24, 473,081.88 and 118,718.48

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Solution

The fourth proportional to 315,572.24, 473,081.88 and 118,718.48 is: 177,973.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,572.24 : 473,081.88 = 118,718.48 : x
  2. Step 2: Convert to fraction form
    315,572.24/473,081.88 = 118,718.48/x
  3. Step 3: Cross multiply
    315,572.24x = 473,081.88 × 118,718.48
  4. Step 4: Simplify right side
    315,572.24x = 56,163,561,709.14
  5. Step 5: Solve for x
    x = 56,163,561,709.14/315,572.24
  6. Step 6: Final answer
    x = 177,973.71

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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.