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Finding the Fourth Proportional to 266,854.64, 368,392.67 and 153,655.52

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Solution

The fourth proportional to 266,854.64, 368,392.67 and 153,655.52 is: 212,121.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,854.64 : 368,392.67 = 153,655.52 : x
  2. Step 2: Convert to fraction form
    266,854.64/368,392.67 = 153,655.52/x
  3. Step 3: Cross multiply
    266,854.64x = 368,392.67 × 153,655.52
  4. Step 4: Simplify right side
    266,854.64x = 56,605,564,662.80
  5. Step 5: Solve for x
    x = 56,605,564,662.80/266,854.64
  6. Step 6: Final answer
    x = 212,121.35

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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.