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Finding the Fourth Proportional to 93,002.94, 128,364.48 and 61,174.80

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Solution

The fourth proportional to 93,002.94, 128,364.48 and 61,174.80 is: 84,434.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,002.94 : 128,364.48 = 61,174.80 : x
  2. Step 2: Convert to fraction form
    93,002.94/128,364.48 = 61,174.80/x
  3. Step 3: Cross multiply
    93,002.94x = 128,364.48 × 61,174.80
  4. Step 4: Simplify right side
    93,002.94x = 7,852,671,391.10
  5. Step 5: Solve for x
    x = 7,852,671,391.10/93,002.94
  6. Step 6: Final answer
    x = 84,434.66

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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.