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Finding the Fourth Proportional to 346,704.98, 520,057.40 and 93,985.45

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Solution

The fourth proportional to 346,704.98, 520,057.40 and 93,985.45 is: 140,978.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,704.98 : 520,057.40 = 93,985.45 : x
  2. Step 2: Convert to fraction form
    346,704.98/520,057.40 = 93,985.45/x
  3. Step 3: Cross multiply
    346,704.98x = 520,057.40 × 93,985.45
  4. Step 4: Simplify right side
    346,704.98x = 48,877,826,994.76
  5. Step 5: Solve for x
    x = 48,877,826,994.76/346,704.98
  6. Step 6: Final answer
    x = 140,978.15

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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.