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Finding the Fourth Proportional to 191,140.80, 286,365.60 and 169,022.40

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Solution

The fourth proportional to 191,140.80, 286,365.60 and 169,022.40 is: 253,227.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,140.80 : 286,365.60 = 169,022.40 : x
  2. Step 2: Convert to fraction form
    191,140.80/286,365.60 = 169,022.40/x
  3. Step 3: Cross multiply
    191,140.80x = 286,365.60 × 169,022.40
  4. Step 4: Simplify right side
    191,140.80x = 48,402,200,989.44
  5. Step 5: Solve for x
    x = 48,402,200,989.44/191,140.80
  6. Step 6: Final answer
    x = 253,227.99

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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.