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Finding the Fourth Proportional to 238,511.40, 357,779.35 and 61,019.94

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Solution

The fourth proportional to 238,511.40, 357,779.35 and 61,019.94 is: 91,533.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,511.40 : 357,779.35 = 61,019.94 : x
  2. Step 2: Convert to fraction form
    238,511.40/357,779.35 = 61,019.94/x
  3. Step 3: Cross multiply
    238,511.40x = 357,779.35 × 61,019.94
  4. Step 4: Simplify right side
    238,511.40x = 21,831,674,470.24
  5. Step 5: Solve for x
    x = 21,831,674,470.24/238,511.40
  6. Step 6: Final answer
    x = 91,533.04

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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.