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Finding the Fourth Proportional to 178,155.40, 266,801.10 and 94,865.80

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Solution

The fourth proportional to 178,155.40, 266,801.10 and 94,865.80 is: 142,068.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,155.40 : 266,801.10 = 94,865.80 : x
  2. Step 2: Convert to fraction form
    178,155.40/266,801.10 = 94,865.80/x
  3. Step 3: Cross multiply
    178,155.40x = 266,801.10 × 94,865.80
  4. Step 4: Simplify right side
    178,155.40x = 25,310,299,792.38
  5. Step 5: Solve for x
    x = 25,310,299,792.38/178,155.40
  6. Step 6: Final answer
    x = 142,068.66

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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.