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Finding the Fourth Proportional to 247,980.32, 342,275.60 and 152,572.44

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Solution

The fourth proportional to 247,980.32, 342,275.60 and 152,572.44 is: 210,588.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,980.32 : 342,275.60 = 152,572.44 : x
  2. Step 2: Convert to fraction form
    247,980.32/342,275.60 = 152,572.44/x
  3. Step 3: Cross multiply
    247,980.32x = 342,275.60 × 152,572.44
  4. Step 4: Simplify right side
    247,980.32x = 52,221,822,681.60
  5. Step 5: Solve for x
    x = 52,221,822,681.60/247,980.32
  6. Step 6: Final answer
    x = 210,588.58

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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.