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Finding the Fourth Proportional to 93,653.92, 129,242.46 and 51,216.40

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Solution

The fourth proportional to 93,653.92, 129,242.46 and 51,216.40 is: 70,678.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,653.92 : 129,242.46 = 51,216.40 : x
  2. Step 2: Convert to fraction form
    93,653.92/129,242.46 = 51,216.40/x
  3. Step 3: Cross multiply
    93,653.92x = 129,242.46 × 51,216.40
  4. Step 4: Simplify right side
    93,653.92x = 6,619,333,528.34
  5. Step 5: Solve for x
    x = 6,619,333,528.34/93,653.92
  6. Step 6: Final answer
    x = 70,678.66

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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.