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Finding the Fourth Proportional to 191,417.29, 287,152.20 and 65,023.60

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Solution

The fourth proportional to 191,417.29, 287,152.20 and 65,023.60 is: 97,544.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,417.29 : 287,152.20 = 65,023.60 : x
  2. Step 2: Convert to fraction form
    191,417.29/287,152.20 = 65,023.60/x
  3. Step 3: Cross multiply
    191,417.29x = 287,152.20 × 65,023.60
  4. Step 4: Simplify right side
    191,417.29x = 18,671,669,791.92
  5. Step 5: Solve for x
    x = 18,671,669,791.92/191,417.29
  6. Step 6: Final answer
    x = 97,544.32

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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.