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Finding the Fourth Proportional to 66,536,427.60, 99,697,332.60 and 37,696,798.80

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Solution

The fourth proportional to 66,536,427.60, 99,697,332.60 and 37,696,798.80 is: 56,484,401.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,536,427.60 : 99,697,332.60 = 37,696,798.80 : x
  2. Step 2: Convert to fraction form
    66,536,427.60/99,697,332.60 = 37,696,798.80/x
  3. Step 3: Cross multiply
    66,536,427.60x = 99,697,332.60 × 37,696,798.80
  4. Step 4: Simplify right side
    66,536,427.60x = 3,758,270,287,918,880.50
  5. Step 5: Solve for x
    x = 3,758,270,287,918,880.50/66,536,427.60
  6. Step 6: Final answer
    x = 56,484,401.45

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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.