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Finding the Fourth Proportional to 284,184.44, 392,174.56 and 156,860.07

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Solution

The fourth proportional to 284,184.44, 392,174.56 and 156,860.07 is: 216,466.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,184.44 : 392,174.56 = 156,860.07 : x
  2. Step 2: Convert to fraction form
    284,184.44/392,174.56 = 156,860.07/x
  3. Step 3: Cross multiply
    284,184.44x = 392,174.56 × 156,860.07
  4. Step 4: Simplify right side
    284,184.44x = 61,516,528,933.82
  5. Step 5: Solve for x
    x = 61,516,528,933.82/284,184.44
  6. Step 6: Final answer
    x = 216,466.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.