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Finding the Fourth Proportional to 99,740.95, 137,623.68 and 59,458.46

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Solution

The fourth proportional to 99,740.95, 137,623.68 and 59,458.46 is: 82,041.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,740.95 : 137,623.68 = 59,458.46 : x
  2. Step 2: Convert to fraction form
    99,740.95/137,623.68 = 59,458.46/x
  3. Step 3: Cross multiply
    99,740.95x = 137,623.68 × 59,458.46
  4. Step 4: Simplify right side
    99,740.95x = 8,182,892,712.64
  5. Step 5: Solve for x
    x = 8,182,892,712.64/99,740.95
  6. Step 6: Final answer
    x = 82,041.45

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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.