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Finding the Fourth Proportional to 93,293.16, 128,748.06 and 53,013.78

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Solution

The fourth proportional to 93,293.16, 128,748.06 and 53,013.78 is: 73,161.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,293.16 : 128,748.06 = 53,013.78 : x
  2. Step 2: Convert to fraction form
    93,293.16/128,748.06 = 53,013.78/x
  3. Step 3: Cross multiply
    93,293.16x = 128,748.06 × 53,013.78
  4. Step 4: Simplify right side
    93,293.16x = 6,825,421,328.27
  5. Step 5: Solve for x
    x = 6,825,421,328.27/93,293.16
  6. Step 6: Final answer
    x = 73,161.00

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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.