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Finding the Fourth Proportional to 93,460.37, 128,977.52 and 51,019.20

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Solution

The fourth proportional to 93,460.37, 128,977.52 and 51,019.20 is: 70,407.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,460.37 : 128,977.52 = 51,019.20 : x
  2. Step 2: Convert to fraction form
    93,460.37/128,977.52 = 51,019.20/x
  3. Step 3: Cross multiply
    93,460.37x = 128,977.52 × 51,019.20
  4. Step 4: Simplify right side
    93,460.37x = 6,580,329,633.29
  5. Step 5: Solve for x
    x = 6,580,329,633.29/93,460.37
  6. Step 6: Final answer
    x = 70,407.70

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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.