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Finding the Fourth Proportional to 70,598.14, 105,274.42 and 60,800.38

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Solution

The fourth proportional to 70,598.14, 105,274.42 and 60,800.38 is: 90,664.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,598.14 : 105,274.42 = 60,800.38 : x
  2. Step 2: Convert to fraction form
    70,598.14/105,274.42 = 60,800.38/x
  3. Step 3: Cross multiply
    70,598.14x = 105,274.42 × 60,800.38
  4. Step 4: Simplify right side
    70,598.14x = 6,400,724,740.28
  5. Step 5: Solve for x
    x = 6,400,724,740.28/70,598.14
  6. Step 6: Final answer
    x = 90,664.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.