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Finding the Fourth Proportional to 238,624.48, 357,941.28 and 191,018.50

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Solution

The fourth proportional to 238,624.48, 357,941.28 and 191,018.50 is: 286,531.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,624.48 : 357,941.28 = 191,018.50 : x
  2. Step 2: Convert to fraction form
    238,624.48/357,941.28 = 191,018.50/x
  3. Step 3: Cross multiply
    238,624.48x = 357,941.28 × 191,018.50
  4. Step 4: Simplify right side
    238,624.48x = 68,373,407,154.09
  5. Step 5: Solve for x
    x = 68,373,407,154.09/238,624.48
  6. Step 6: Final answer
    x = 286,531.40

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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.