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Finding the Fourth Proportional to 98,573.60, 147,860.40 and 48,661.40

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Solution

The fourth proportional to 98,573.60, 147,860.40 and 48,661.40 is: 72,992.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,573.60 : 147,860.40 = 48,661.40 : x
  2. Step 2: Convert to fraction form
    98,573.60/147,860.40 = 48,661.40/x
  3. Step 3: Cross multiply
    98,573.60x = 147,860.40 × 48,661.40
  4. Step 4: Simplify right side
    98,573.60x = 7,195,094,068.56
  5. Step 5: Solve for x
    x = 7,195,094,068.56/98,573.60
  6. Step 6: Final answer
    x = 72,992.10

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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.