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Finding the Fourth Proportional to 292,866.88, 404,156.64 and 158,730.88

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Solution

The fourth proportional to 292,866.88, 404,156.64 and 158,730.88 is: 219,048.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,866.88 : 404,156.64 = 158,730.88 : x
  2. Step 2: Convert to fraction form
    292,866.88/404,156.64 = 158,730.88/x
  3. Step 3: Cross multiply
    292,866.88x = 404,156.64 × 158,730.88
  4. Step 4: Simplify right side
    292,866.88x = 64,152,139,125.04
  5. Step 5: Solve for x
    x = 64,152,139,125.04/292,866.88
  6. Step 6: Final answer
    x = 219,048.80

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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.