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Finding the Fourth Proportional to 106,677.65, 147,219.62 and 61,355.64

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Solution

The fourth proportional to 106,677.65, 147,219.62 and 61,355.64 is: 84,673.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,677.65 : 147,219.62 = 61,355.64 : x
  2. Step 2: Convert to fraction form
    106,677.65/147,219.62 = 61,355.64/x
  3. Step 3: Cross multiply
    106,677.65x = 147,219.62 × 61,355.64
  4. Step 4: Simplify right side
    106,677.65x = 9,032,754,159.05
  5. Step 5: Solve for x
    x = 9,032,754,159.05/106,677.65
  6. Step 6: Final answer
    x = 84,673.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.