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Finding the Fourth Proportional to 104,819,710.40, 157,080,266.40 and 77,311,332.80

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Solution

The fourth proportional to 104,819,710.40, 157,080,266.40 and 77,311,332.80 is: 115,856,881.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,819,710.40 : 157,080,266.40 = 77,311,332.80 : x
  2. Step 2: Convert to fraction form
    104,819,710.40/157,080,266.40 = 77,311,332.80/x
  3. Step 3: Cross multiply
    104,819,710.40x = 157,080,266.40 × 77,311,332.80
  4. Step 4: Simplify right side
    104,819,710.40x = 12,144,084,751,963,058
  5. Step 5: Solve for x
    x = 12,144,084,751,963,058/104,819,710.40
  6. Step 6: Final answer
    x = 115,856,881.36

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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.