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Finding the Fourth Proportional to 70,141,097.80, 104,999,070.30 and 51,009,221.80

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Solution

The fourth proportional to 70,141,097.80, 104,999,070.30 and 51,009,221.80 is: 76,359,239.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,141,097.80 : 104,999,070.30 = 51,009,221.80 : x
  2. Step 2: Convert to fraction form
    70,141,097.80/104,999,070.30 = 51,009,221.80/x
  3. Step 3: Cross multiply
    70,141,097.80x = 104,999,070.30 × 51,009,221.80
  4. Step 4: Simplify right side
    70,141,097.80x = 5,355,920,865,726,492
  5. Step 5: Solve for x
    x = 5,355,920,865,726,492/70,141,097.80
  6. Step 6: Final answer
    x = 76,359,239.22

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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.