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Finding the Fourth Proportional to 188,459.33, 260,070.95 and 103,574.57

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Solution

The fourth proportional to 188,459.33, 260,070.95 and 103,574.57 is: 142,931.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,459.33 : 260,070.95 = 103,574.57 : x
  2. Step 2: Convert to fraction form
    188,459.33/260,070.95 = 103,574.57/x
  3. Step 3: Cross multiply
    188,459.33x = 260,070.95 × 103,574.57
  4. Step 4: Simplify right side
    188,459.33x = 26,936,735,774.32
  5. Step 5: Solve for x
    x = 26,936,735,774.32/188,459.33
  6. Step 6: Final answer
    x = 142,931.30

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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.