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Finding the Fourth Proportional to 105,097.60, 157,646.40 and 98,876.80

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Solution

The fourth proportional to 105,097.60, 157,646.40 and 98,876.80 is: 148,315.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,097.60 : 157,646.40 = 98,876.80 : x
  2. Step 2: Convert to fraction form
    105,097.60/157,646.40 = 98,876.80/x
  3. Step 3: Cross multiply
    105,097.60x = 157,646.40 × 98,876.80
  4. Step 4: Simplify right side
    105,097.60x = 15,587,571,563.52
  5. Step 5: Solve for x
    x = 15,587,571,563.52/105,097.60
  6. Step 6: Final answer
    x = 148,315.20

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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.