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Finding the Fourth Proportional to 97,354.56, 134,361.61 and 56,509.95

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Solution

The fourth proportional to 97,354.56, 134,361.61 and 56,509.95 is: 77,990.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,354.56 : 134,361.61 = 56,509.95 : x
  2. Step 2: Convert to fraction form
    97,354.56/134,361.61 = 56,509.95/x
  3. Step 3: Cross multiply
    97,354.56x = 134,361.61 × 56,509.95
  4. Step 4: Simplify right side
    97,354.56x = 7,592,768,384.53
  5. Step 5: Solve for x
    x = 7,592,768,384.53/97,354.56
  6. Step 6: Final answer
    x = 77,990.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.