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Finding the Fourth Proportional to 104,357,644.40, 156,387,167.40 and 76,849,266.80

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Solution

The fourth proportional to 104,357,644.40, 156,387,167.40 and 76,849,266.80 is: 115,163,955.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,357,644.40 : 156,387,167.40 = 76,849,266.80 : x
  2. Step 2: Convert to fraction form
    104,357,644.40/156,387,167.40 = 76,849,266.80/x
  3. Step 3: Cross multiply
    104,357,644.40x = 156,387,167.40 × 76,849,266.80
  4. Step 4: Simplify right side
    104,357,644.40x = 12,018,239,151,618,862
  5. Step 5: Solve for x
    x = 12,018,239,151,618,862/104,357,644.40
  6. Step 6: Final answer
    x = 115,163,955.84

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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.