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Finding the Fourth Proportional to 74,791.46, 103,210.39 and 42,962.40

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Solution

The fourth proportional to 74,791.46, 103,210.39 and 42,962.40 is: 59,287.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,791.46 : 103,210.39 = 42,962.40 : x
  2. Step 2: Convert to fraction form
    74,791.46/103,210.39 = 42,962.40/x
  3. Step 3: Cross multiply
    74,791.46x = 103,210.39 × 42,962.40
  4. Step 4: Simplify right side
    74,791.46x = 4,434,166,059.34
  5. Step 5: Solve for x
    x = 4,434,166,059.34/74,791.46
  6. Step 6: Final answer
    x = 59,287.06

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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.