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Finding the Fourth Proportional to 216,656.61, 299,061.26 and 148,897.88

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Solution

The fourth proportional to 216,656.61, 299,061.26 and 148,897.88 is: 205,530.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,656.61 : 299,061.26 = 148,897.88 : x
  2. Step 2: Convert to fraction form
    216,656.61/299,061.26 = 148,897.88/x
  3. Step 3: Cross multiply
    216,656.61x = 299,061.26 × 148,897.88
  4. Step 4: Simplify right side
    216,656.61x = 44,529,587,881.73
  5. Step 5: Solve for x
    x = 44,529,587,881.73/216,656.61
  6. Step 6: Final answer
    x = 205,530.72

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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.