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Finding the Fourth Proportional to 64,668,068.83, 96,966,214.55 and 21,513,714.62

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Solution

The fourth proportional to 64,668,068.83, 96,966,214.55 and 21,513,714.62 is: 32,258,632.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,668,068.83 : 96,966,214.55 = 21,513,714.62 : x
  2. Step 2: Convert to fraction form
    64,668,068.83/96,966,214.55 = 21,513,714.62/x
  3. Step 3: Cross multiply
    64,668,068.83x = 96,966,214.55 × 21,513,714.62
  4. Step 4: Simplify right side
    64,668,068.83x = 2,086,103,467,745,238.50
  5. Step 5: Solve for x
    x = 2,086,103,467,745,238.50/64,668,068.83
  6. Step 6: Final answer
    x = 32,258,632.51

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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.