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Finding the Fourth Proportional to 169,897.40, 234,459.31 and 93,421.43

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Solution

The fourth proportional to 169,897.40, 234,459.31 and 93,421.43 is: 128,922.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,897.40 : 234,459.31 = 93,421.43 : x
  2. Step 2: Convert to fraction form
    169,897.40/234,459.31 = 93,421.43/x
  3. Step 3: Cross multiply
    169,897.40x = 234,459.31 × 93,421.43
  4. Step 4: Simplify right side
    169,897.40x = 21,903,523,006.13
  5. Step 5: Solve for x
    x = 21,903,523,006.13/169,897.40
  6. Step 6: Final answer
    x = 128,922.06

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1.5x scale

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.