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Finding the Fourth Proportional to 108,708.30, 163,062.45 and 98,210.70

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Solution

The fourth proportional to 108,708.30, 163,062.45 and 98,210.70 is: 147,316.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,708.30 : 163,062.45 = 98,210.70 : x
  2. Step 2: Convert to fraction form
    108,708.30/163,062.45 = 98,210.70/x
  3. Step 3: Cross multiply
    108,708.30x = 163,062.45 × 98,210.70
  4. Step 4: Simplify right side
    108,708.30x = 16,014,477,358.22
  5. Step 5: Solve for x
    x = 16,014,477,358.22/108,708.30
  6. Step 6: Final answer
    x = 147,316.05

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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.