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Finding the Fourth Proportional to 169,878.34, 234,432.26 and 93,398.74

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Solution

The fourth proportional to 169,878.34, 234,432.26 and 93,398.74 is: 128,890.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,878.34 : 234,432.26 = 93,398.74 : x
  2. Step 2: Convert to fraction form
    169,878.34/234,432.26 = 93,398.74/x
  3. Step 3: Cross multiply
    169,878.34x = 234,432.26 × 93,398.74
  4. Step 4: Simplify right side
    169,878.34x = 21,895,677,699.35
  5. Step 5: Solve for x
    x = 21,895,677,699.35/169,878.34
  6. Step 6: Final answer
    x = 128,890.34

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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.