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Finding the Fourth Proportional to 93,038.64, 128,390.58 and 52,756.08

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Solution

The fourth proportional to 93,038.64, 128,390.58 and 52,756.08 is: 72,801.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,038.64 : 128,390.58 = 52,756.08 : x
  2. Step 2: Convert to fraction form
    93,038.64/128,390.58 = 52,756.08/x
  3. Step 3: Cross multiply
    93,038.64x = 128,390.58 × 52,756.08
  4. Step 4: Simplify right side
    93,038.64x = 6,773,383,709.73
  5. Step 5: Solve for x
    x = 6,773,383,709.73/93,038.64
  6. Step 6: Final answer
    x = 72,801.83

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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.