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Finding the Fourth Proportional to 370,866.60, 556,054.11 and 134,178.48

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Solution

The fourth proportional to 370,866.60, 556,054.11 and 134,178.48 is: 201,178.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,866.60 : 556,054.11 = 134,178.48 : x
  2. Step 2: Convert to fraction form
    370,866.60/556,054.11 = 134,178.48/x
  3. Step 3: Cross multiply
    370,866.60x = 556,054.11 × 134,178.48
  4. Step 4: Simplify right side
    370,866.60x = 74,610,495,277.55
  5. Step 5: Solve for x
    x = 74,610,495,277.55/370,866.60
  6. Step 6: Final answer
    x = 201,178.79

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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.