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Finding the Fourth Proportional to 153,652.72, 212,054.68 and 93,238.66

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Solution

The fourth proportional to 153,652.72, 212,054.68 and 93,238.66 is: 128,677.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,652.72 : 212,054.68 = 93,238.66 : x
  2. Step 2: Convert to fraction form
    153,652.72/212,054.68 = 93,238.66/x
  3. Step 3: Cross multiply
    153,652.72x = 212,054.68 × 93,238.66
  4. Step 4: Simplify right side
    153,652.72x = 19,771,694,209.93
  5. Step 5: Solve for x
    x = 19,771,694,209.93/153,652.72
  6. Step 6: Final answer
    x = 128,677.80

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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.