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Finding the Fourth Proportional to 169,521.93, 254,365.47 and 69,712.11

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Solution

The fourth proportional to 169,521.93, 254,365.47 and 69,712.11 is: 104,602.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,521.93 : 254,365.47 = 69,712.11 : x
  2. Step 2: Convert to fraction form
    169,521.93/254,365.47 = 69,712.11/x
  3. Step 3: Cross multiply
    169,521.93x = 254,365.47 × 69,712.11
  4. Step 4: Simplify right side
    169,521.93x = 17,732,353,624.84
  5. Step 5: Solve for x
    x = 17,732,353,624.84/169,521.93
  6. Step 6: Final answer
    x = 104,602.12

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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.