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Finding the Fourth Proportional to 260,030.52, 358,844.58 and 145,318.32

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Solution

The fourth proportional to 260,030.52, 358,844.58 and 145,318.32 is: 200,540.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,030.52 : 358,844.58 = 145,318.32 : x
  2. Step 2: Convert to fraction form
    260,030.52/358,844.58 = 145,318.32/x
  3. Step 3: Cross multiply
    260,030.52x = 358,844.58 × 145,318.32
  4. Step 4: Simplify right side
    260,030.52x = 52,146,691,506.71
  5. Step 5: Solve for x
    x = 52,146,691,506.71/260,030.52
  6. Step 6: Final answer
    x = 200,540.66

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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.