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Finding the Fourth Proportional to 93,221.01, 128,646.41 and 50,779.53

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Solution

The fourth proportional to 93,221.01, 128,646.41 and 50,779.53 is: 70,076.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,221.01 : 128,646.41 = 50,779.53 : x
  2. Step 2: Convert to fraction form
    93,221.01/128,646.41 = 50,779.53/x
  3. Step 3: Cross multiply
    93,221.01x = 128,646.41 × 50,779.53
  4. Step 4: Simplify right side
    93,221.01x = 6,532,603,982.09
  5. Step 5: Solve for x
    x = 6,532,603,982.09/93,221.01
  6. Step 6: Final answer
    x = 70,076.52

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1.5x scale

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.