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Finding the Fourth Proportional to 153,487.84, 211,793.54 and 88,956.63

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Solution

The fourth proportional to 153,487.84, 211,793.54 and 88,956.63 is: 122,748.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,487.84 : 211,793.54 = 88,956.63 : x
  2. Step 2: Convert to fraction form
    153,487.84/211,793.54 = 88,956.63/x
  3. Step 3: Cross multiply
    153,487.84x = 211,793.54 × 88,956.63
  4. Step 4: Simplify right side
    153,487.84x = 18,840,439,574.17
  5. Step 5: Solve for x
    x = 18,840,439,574.17/153,487.84
  6. Step 6: Final answer
    x = 122,748.74

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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.