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Finding the Fourth Proportional to 287,044.95, 430,664.21 and 127,099.04

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Solution

The fourth proportional to 287,044.95, 430,664.21 and 127,099.04 is: 190,691.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,044.95 : 430,664.21 = 127,099.04 : x
  2. Step 2: Convert to fraction form
    287,044.95/430,664.21 = 127,099.04/x
  3. Step 3: Cross multiply
    287,044.95x = 430,664.21 × 127,099.04
  4. Step 4: Simplify right side
    287,044.95x = 54,737,009,047.77
  5. Step 5: Solve for x
    x = 54,737,009,047.77/287,044.95
  6. Step 6: Final answer
    x = 190,691.42

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1.5x scale

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.