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Finding the Fourth Proportional to 77,697,219.20, 116,545,828.80 and 26,574,684.80

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Solution

The fourth proportional to 77,697,219.20, 116,545,828.80 and 26,574,684.80 is: 39,862,027.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,697,219.20 : 116,545,828.80 = 26,574,684.80 : x
  2. Step 2: Convert to fraction form
    77,697,219.20/116,545,828.80 = 26,574,684.80/x
  3. Step 3: Cross multiply
    77,697,219.20x = 116,545,828.80 × 26,574,684.80
  4. Step 4: Simplify right side
    77,697,219.20x = 3,097,168,665,114,762
  5. Step 5: Solve for x
    x = 3,097,168,665,114,762/77,697,219.20
  6. Step 6: Final answer
    x = 39,862,027.20

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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.