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Finding the Fourth Proportional to 238,641.94, 357,979.32 and 70,166.40

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Solution

The fourth proportional to 238,641.94, 357,979.32 and 70,166.40 is: 105,254.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,641.94 : 357,979.32 = 70,166.40 : x
  2. Step 2: Convert to fraction form
    238,641.94/357,979.32 = 70,166.40/x
  3. Step 3: Cross multiply
    238,641.94x = 357,979.32 × 70,166.40
  4. Step 4: Simplify right side
    238,641.94x = 25,118,120,158.85
  5. Step 5: Solve for x
    x = 25,118,120,158.85/238,641.94
  6. Step 6: Final answer
    x = 105,254.42

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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.