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Finding the Fourth Proportional to 98,491.55, 147,783.47 and 48,544.40

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Solution

The fourth proportional to 98,491.55, 147,783.47 and 48,544.40 is: 72,839.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,491.55 : 147,783.47 = 48,544.40 : x
  2. Step 2: Convert to fraction form
    98,491.55/147,783.47 = 48,544.40/x
  3. Step 3: Cross multiply
    98,491.55x = 147,783.47 × 48,544.40
  4. Step 4: Simplify right side
    98,491.55x = 7,174,060,007.80
  5. Step 5: Solve for x
    x = 7,174,060,007.80/98,491.55
  6. Step 6: Final answer
    x = 72,839.35

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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.