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Finding the Fourth Proportional to 423,870.93, 635,806.71 and 108,328.14

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Solution

The fourth proportional to 423,870.93, 635,806.71 and 108,328.14 is: 162,492.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,870.93 : 635,806.71 = 108,328.14 : x
  2. Step 2: Convert to fraction form
    423,870.93/635,806.71 = 108,328.14/x
  3. Step 3: Cross multiply
    423,870.93x = 635,806.71 × 108,328.14
  4. Step 4: Simplify right side
    423,870.93x = 68,875,758,293.82
  5. Step 5: Solve for x
    x = 68,875,758,293.82/423,870.93
  6. Step 6: Final answer
    x = 162,492.29

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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.