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Finding the Fourth Proportional to 70,484.48, 105,785.04 and 52,897.76

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Solution

The fourth proportional to 70,484.48, 105,785.04 and 52,897.76 is: 79,390.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,484.48 : 105,785.04 = 52,897.76 : x
  2. Step 2: Convert to fraction form
    70,484.48/105,785.04 = 52,897.76/x
  3. Step 3: Cross multiply
    70,484.48x = 105,785.04 × 52,897.76
  4. Step 4: Simplify right side
    70,484.48x = 5,595,791,657.51
  5. Step 5: Solve for x
    x = 5,595,791,657.51/70,484.48
  6. Step 6: Final answer
    x = 79,390.41

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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.