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Finding the Fourth Proportional to 64,657,117.60, 96,985,676.40 and 57,642,096.40

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Solution

The fourth proportional to 64,657,117.60, 96,985,676.40 and 57,642,096.40 is: 86,463,144.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,657,117.60 : 96,985,676.40 = 57,642,096.40 : x
  2. Step 2: Convert to fraction form
    64,657,117.60/96,985,676.40 = 57,642,096.40/x
  3. Step 3: Cross multiply
    64,657,117.60x = 96,985,676.40 × 57,642,096.40
  4. Step 4: Simplify right side
    64,657,117.60x = 5,590,457,708,468,005
  5. Step 5: Solve for x
    x = 5,590,457,708,468,005/64,657,117.60
  6. Step 6: Final answer
    x = 86,463,144.60

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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.