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Finding the Fourth Proportional to 93,373.40, 128,855.09 and 50,931.93

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Solution

The fourth proportional to 93,373.40, 128,855.09 and 50,931.93 is: 70,285.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,373.40 : 128,855.09 = 50,931.93 : x
  2. Step 2: Convert to fraction form
    93,373.40/128,855.09 = 50,931.93/x
  3. Step 3: Cross multiply
    93,373.40x = 128,855.09 × 50,931.93
  4. Step 4: Simplify right side
    93,373.40x = 6,562,838,169.36
  5. Step 5: Solve for x
    x = 6,562,838,169.36/93,373.40
  6. Step 6: Final answer
    x = 70,285.95

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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.