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Finding the Fourth Proportional to 64,476,492.60, 96,714,738.90 and 56,078,412.60

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Solution

The fourth proportional to 64,476,492.60, 96,714,738.90 and 56,078,412.60 is: 84,117,618.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,476,492.60 : 96,714,738.90 = 56,078,412.60 : x
  2. Step 2: Convert to fraction form
    64,476,492.60/96,714,738.90 = 56,078,412.60/x
  3. Step 3: Cross multiply
    64,476,492.60x = 96,714,738.90 × 56,078,412.60
  4. Step 4: Simplify right side
    64,476,492.60x = 5,423,609,032,535,471
  5. Step 5: Solve for x
    x = 5,423,609,032,535,471/64,476,492.60
  6. Step 6: Final answer
    x = 84,117,618.90

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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.