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Finding the Fourth Proportional to 88,985.76, 122,798.70 and 48,698.70

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Solution

The fourth proportional to 88,985.76, 122,798.70 and 48,698.70 is: 67,203.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,985.76 : 122,798.70 = 48,698.70 : x
  2. Step 2: Convert to fraction form
    88,985.76/122,798.70 = 48,698.70/x
  3. Step 3: Cross multiply
    88,985.76x = 122,798.70 × 48,698.70
  4. Step 4: Simplify right side
    88,985.76x = 5,980,137,051.69
  5. Step 5: Solve for x
    x = 5,980,137,051.69/88,985.76
  6. Step 6: Final answer
    x = 67,203.30

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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.