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Finding the Fourth Proportional to 93,400.74, 128,887.74 and 53,124.30

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Solution

The fourth proportional to 93,400.74, 128,887.74 and 53,124.30 is: 73,308.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,400.74 : 128,887.74 = 53,124.30 : x
  2. Step 2: Convert to fraction form
    93,400.74/128,887.74 = 53,124.30/x
  3. Step 3: Cross multiply
    93,400.74x = 128,887.74 × 53,124.30
  4. Step 4: Simplify right side
    93,400.74x = 6,847,070,966.08
  5. Step 5: Solve for x
    x = 6,847,070,966.08/93,400.74
  6. Step 6: Final answer
    x = 73,308.53

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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.