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Finding the Fourth Proportional to 101,897.60, 152,846.40 and 66,468.80

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Solution

The fourth proportional to 101,897.60, 152,846.40 and 66,468.80 is: 99,703.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,897.60 : 152,846.40 = 66,468.80 : x
  2. Step 2: Convert to fraction form
    101,897.60/152,846.40 = 66,468.80/x
  3. Step 3: Cross multiply
    101,897.60x = 152,846.40 × 66,468.80
  4. Step 4: Simplify right side
    101,897.60x = 10,159,516,792.32
  5. Step 5: Solve for x
    x = 10,159,516,792.32/101,897.60
  6. Step 6: Final answer
    x = 99,703.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.