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Finding the Fourth Proportional to 98,707.74, 148,039.74 and 39,527.52

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Solution

The fourth proportional to 98,707.74, 148,039.74 and 39,527.52 is: 59,282.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,707.74 : 148,039.74 = 39,527.52 : x
  2. Step 2: Convert to fraction form
    98,707.74/148,039.74 = 39,527.52/x
  3. Step 3: Cross multiply
    98,707.74x = 148,039.74 × 39,527.52
  4. Step 4: Simplify right side
    98,707.74x = 5,851,643,783.64
  5. Step 5: Solve for x
    x = 5,851,643,783.64/98,707.74
  6. Step 6: Final answer
    x = 59,282.52

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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.