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Finding the Fourth Proportional to 93,284.53, 128,751.02 and 64,973.81

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Solution

The fourth proportional to 93,284.53, 128,751.02 and 64,973.81 is: 89,676.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,284.53 : 128,751.02 = 64,973.81 : x
  2. Step 2: Convert to fraction form
    93,284.53/128,751.02 = 64,973.81/x
  3. Step 3: Cross multiply
    93,284.53x = 128,751.02 × 64,973.81
  4. Step 4: Simplify right side
    93,284.53x = 8,365,444,551.45
  5. Step 5: Solve for x
    x = 8,365,444,551.45/93,284.53
  6. Step 6: Final answer
    x = 89,676.66

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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.