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Finding the Fourth Proportional to 358,535.67, 537,798.65 and 122,043.21

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Solution

The fourth proportional to 358,535.67, 537,798.65 and 122,043.21 is: 183,063.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,535.67 : 537,798.65 = 122,043.21 : x
  2. Step 2: Convert to fraction form
    358,535.67/537,798.65 = 122,043.21/x
  3. Step 3: Cross multiply
    358,535.67x = 537,798.65 × 122,043.21
  4. Step 4: Simplify right side
    358,535.67x = 65,634,672,969.45
  5. Step 5: Solve for x
    x = 65,634,672,969.45/358,535.67
  6. Step 6: Final answer
    x = 183,063.16

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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.