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Finding the Fourth Proportional to 61,668,703.88, 92,503,123.86 and 18,537,904.16

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Solution

The fourth proportional to 61,668,703.88, 92,503,123.86 and 18,537,904.16 is: 27,806,876.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,668,703.88 : 92,503,123.86 = 18,537,904.16 : x
  2. Step 2: Convert to fraction form
    61,668,703.88/92,503,123.86 = 18,537,904.16/x
  3. Step 3: Cross multiply
    61,668,703.88x = 92,503,123.86 × 18,537,904.16
  4. Step 4: Simplify right side
    61,668,703.88x = 1,714,814,044,617,289.25
  5. Step 5: Solve for x
    x = 1,714,814,044,617,289.25/61,668,703.88
  6. Step 6: Final answer
    x = 27,806,876.69

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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.