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Finding the Fourth Proportional to 181,458.50, 250,412.74 and 101,970.50

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Solution

The fourth proportional to 181,458.50, 250,412.74 and 101,970.50 is: 140,719.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,458.50 : 250,412.74 = 101,970.50 : x
  2. Step 2: Convert to fraction form
    181,458.50/250,412.74 = 101,970.50/x
  3. Step 3: Cross multiply
    181,458.50x = 250,412.74 × 101,970.50
  4. Step 4: Simplify right side
    181,458.50x = 25,534,712,304.17
  5. Step 5: Solve for x
    x = 25,534,712,304.17/181,458.50
  6. Step 6: Final answer
    x = 140,719.30

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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.