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Finding the Fourth Proportional to 346,719.90, 520,079.85 and 97,401.90

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Solution

The fourth proportional to 346,719.90, 520,079.85 and 97,401.90 is: 146,102.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,719.90 : 520,079.85 = 97,401.90 : x
  2. Step 2: Convert to fraction form
    346,719.90/520,079.85 = 97,401.90/x
  3. Step 3: Cross multiply
    346,719.90x = 520,079.85 × 97,401.90
  4. Step 4: Simplify right side
    346,719.90x = 50,656,765,541.72
  5. Step 5: Solve for x
    x = 50,656,765,541.72/346,719.90
  6. Step 6: Final answer
    x = 146,102.85

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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.