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Finding the Fourth Proportional to 346,031.70, 519,074.72 and 93,308.38

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Solution

The fourth proportional to 346,031.70, 519,074.72 and 93,308.38 is: 139,969.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,031.70 : 519,074.72 = 93,308.38 : x
  2. Step 2: Convert to fraction form
    346,031.70/519,074.72 = 93,308.38/x
  3. Step 3: Cross multiply
    346,031.70x = 519,074.72 × 93,308.38
  4. Step 4: Simplify right side
    346,031.70x = 48,434,019,807.83
  5. Step 5: Solve for x
    x = 48,434,019,807.83/346,031.70
  6. Step 6: Final answer
    x = 139,969.89

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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.