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Finding the Fourth Proportional to 292,685.53, 438,828.52 and 155,929.08

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Solution

The fourth proportional to 292,685.53, 438,828.52 and 155,929.08 is: 233,787.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,685.53 : 438,828.52 = 155,929.08 : x
  2. Step 2: Convert to fraction form
    292,685.53/438,828.52 = 155,929.08/x
  3. Step 3: Cross multiply
    292,685.53x = 438,828.52 × 155,929.08
  4. Step 4: Simplify right side
    292,685.53x = 68,426,124,917.99
  5. Step 5: Solve for x
    x = 68,426,124,917.99/292,685.53
  6. Step 6: Final answer
    x = 233,787.18

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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.