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Finding the Fourth Proportional to 64,668,866.40, 97,003,299.60 and 60,842,491.20

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Solution

The fourth proportional to 64,668,866.40, 97,003,299.60 and 60,842,491.20 is: 91,263,736.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,668,866.40 : 97,003,299.60 = 60,842,491.20 : x
  2. Step 2: Convert to fraction form
    64,668,866.40/97,003,299.60 = 60,842,491.20/x
  3. Step 3: Cross multiply
    64,668,866.40x = 97,003,299.60 × 60,842,491.20
  4. Step 4: Simplify right side
    64,668,866.40x = 5,901,922,402,283,963
  5. Step 5: Solve for x
    x = 5,901,922,402,283,963/64,668,866.40
  6. Step 6: Final answer
    x = 91,263,736.80

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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.