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Finding the Fourth Proportional to 358,856.15, 538,266.32 and 134,200.07

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Solution

The fourth proportional to 358,856.15, 538,266.32 and 134,200.07 is: 201,293.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,856.15 : 538,266.32 = 134,200.07 : x
  2. Step 2: Convert to fraction form
    358,856.15/538,266.32 = 134,200.07/x
  3. Step 3: Cross multiply
    358,856.15x = 538,266.32 × 134,200.07
  4. Step 4: Simplify right side
    358,856.15x = 72,235,374,460.31
  5. Step 5: Solve for x
    x = 72,235,374,460.31/358,856.15
  6. Step 6: Final answer
    x = 201,293.40

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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.