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Finding the Fourth Proportional to 93,149.52, 128,513 and 62,530.16

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Solution

The fourth proportional to 93,149.52, 128,513 and 62,530.16 is: 86,269.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,149.52 : 128,513 = 62,530.16 : x
  2. Step 2: Convert to fraction form
    93,149.52/128,513 = 62,530.16/x
  3. Step 3: Cross multiply
    93,149.52x = 128,513 × 62,530.16
  4. Step 4: Simplify right side
    93,149.52x = 8,035,938,452.08
  5. Step 5: Solve for x
    x = 8,035,938,452.08/93,149.52
  6. Step 6: Final answer
    x = 86,269.24

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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.