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Finding the Fourth Proportional to 346,535.64, 519,307.74 and 156,524.22

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Solution

The fourth proportional to 346,535.64, 519,307.74 and 156,524.22 is: 234,562.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,535.64 : 519,307.74 = 156,524.22 : x
  2. Step 2: Convert to fraction form
    346,535.64/519,307.74 = 156,524.22/x
  3. Step 3: Cross multiply
    346,535.64x = 519,307.74 × 156,524.22
  4. Step 4: Simplify right side
    346,535.64x = 81,284,238,943.46
  5. Step 5: Solve for x
    x = 81,284,238,943.46/346,535.64
  6. Step 6: Final answer
    x = 234,562.42

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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.