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Finding the Fourth Proportional to 338,587.65, 507,706.52 and 169,926.21

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Solution

The fourth proportional to 338,587.65, 507,706.52 and 169,926.21 is: 254,801.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,587.65 : 507,706.52 = 169,926.21 : x
  2. Step 2: Convert to fraction form
    338,587.65/507,706.52 = 169,926.21/x
  3. Step 3: Cross multiply
    338,587.65x = 507,706.52 × 169,926.21
  4. Step 4: Simplify right side
    338,587.65x = 86,272,643,886.26
  5. Step 5: Solve for x
    x = 86,272,643,886.26/338,587.65
  6. Step 6: Final answer
    x = 254,801.51

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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.