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Finding the Fourth Proportional to 64,953,779.50, 89,636,184.57 and 38,848,296.79

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Solution

The fourth proportional to 64,953,779.50, 89,636,184.57 and 38,848,296.79 is: 53,610,630.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,953,779.50 : 89,636,184.57 = 38,848,296.79 : x
  2. Step 2: Convert to fraction form
    64,953,779.50/89,636,184.57 = 38,848,296.79/x
  3. Step 3: Cross multiply
    64,953,779.50x = 89,636,184.57 × 38,848,296.79
  4. Step 4: Simplify right side
    64,953,779.50x = 3,482,213,101,298,578
  5. Step 5: Solve for x
    x = 3,482,213,101,298,578/64,953,779.50
  6. Step 6: Final answer
    x = 53,610,630.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.