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Finding the Fourth Proportional to 346,707.90, 520,061.85 and 97,389.90

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Solution

The fourth proportional to 346,707.90, 520,061.85 and 97,389.90 is: 146,084.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,707.90 : 520,061.85 = 97,389.90 : x
  2. Step 2: Convert to fraction form
    346,707.90/520,061.85 = 97,389.90/x
  3. Step 3: Cross multiply
    346,707.90x = 520,061.85 × 97,389.90
  4. Step 4: Simplify right side
    346,707.90x = 50,648,771,565.32
  5. Step 5: Solve for x
    x = 50,648,771,565.32/346,707.90
  6. Step 6: Final answer
    x = 146,084.85

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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.