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Finding the Fourth Proportional to 98,860.80, 148,291.20 and 98,246.40

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Solution

The fourth proportional to 98,860.80, 148,291.20 and 98,246.40 is: 147,369.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,860.80 : 148,291.20 = 98,246.40 : x
  2. Step 2: Convert to fraction form
    98,860.80/148,291.20 = 98,246.40/x
  3. Step 3: Cross multiply
    98,860.80x = 148,291.20 × 98,246.40
  4. Step 4: Simplify right side
    98,860.80x = 14,569,076,551.68
  5. Step 5: Solve for x
    x = 14,569,076,551.68/98,860.80
  6. Step 6: Final answer
    x = 147,369.60

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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.