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Finding the Fourth Proportional to 116,487.40, 174,731.10 and 69,716.20

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Solution

The fourth proportional to 116,487.40, 174,731.10 and 69,716.20 is: 104,574.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,487.40 : 174,731.10 = 69,716.20 : x
  2. Step 2: Convert to fraction form
    116,487.40/174,731.10 = 69,716.20/x
  3. Step 3: Cross multiply
    116,487.40x = 174,731.10 × 69,716.20
  4. Step 4: Simplify right side
    116,487.40x = 12,181,588,313.82
  5. Step 5: Solve for x
    x = 12,181,588,313.82/116,487.40
  6. Step 6: Final answer
    x = 104,574.30

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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.