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Finding the Fourth Proportional to 98,437.78, 147,620.40 and 35,240.77

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Solution

The fourth proportional to 98,437.78, 147,620.40 and 35,240.77 is: 52,848.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,437.78 : 147,620.40 = 35,240.77 : x
  2. Step 2: Convert to fraction form
    98,437.78/147,620.40 = 35,240.77/x
  3. Step 3: Cross multiply
    98,437.78x = 147,620.40 × 35,240.77
  4. Step 4: Simplify right side
    98,437.78x = 5,202,256,563.71
  5. Step 5: Solve for x
    x = 5,202,256,563.71/98,437.78
  6. Step 6: Final answer
    x = 52,848.17

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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.