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Finding the Fourth Proportional to 169,895.61, 234,456.53 and 93,419.51

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Solution

The fourth proportional to 169,895.61, 234,456.53 and 93,419.51 is: 128,919.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,895.61 : 234,456.53 = 93,419.51 : x
  2. Step 2: Convert to fraction form
    169,895.61/234,456.53 = 93,419.51/x
  3. Step 3: Cross multiply
    169,895.61x = 234,456.53 × 93,419.51
  4. Step 4: Simplify right side
    169,895.61x = 21,902,812,509.52
  5. Step 5: Solve for x
    x = 21,902,812,509.52/169,895.61
  6. Step 6: Final answer
    x = 128,919.24

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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.