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Finding the Fourth Proportional to 98,143.74, 147,259.36 and 35,799.66

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Solution

The fourth proportional to 98,143.74, 147,259.36 and 35,799.66 is: 53,715.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,143.74 : 147,259.36 = 35,799.66 : x
  2. Step 2: Convert to fraction form
    98,143.74/147,259.36 = 35,799.66/x
  3. Step 3: Cross multiply
    98,143.74x = 147,259.36 × 35,799.66
  4. Step 4: Simplify right side
    98,143.74x = 5,271,835,019.82
  5. Step 5: Solve for x
    x = 5,271,835,019.82/98,143.74
  6. Step 6: Final answer
    x = 53,715.45

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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.