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Finding the Fourth Proportional to 93,381.93, 128,215.98 and 90,946.26

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Solution

The fourth proportional to 93,381.93, 128,215.98 and 90,946.26 is: 124,871.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,381.93 : 128,215.98 = 90,946.26 : x
  2. Step 2: Convert to fraction form
    93,381.93/128,215.98 = 90,946.26/x
  3. Step 3: Cross multiply
    93,381.93x = 128,215.98 × 90,946.26
  4. Step 4: Simplify right side
    93,381.93x = 11,660,763,853.23
  5. Step 5: Solve for x
    x = 11,660,763,853.23/93,381.93
  6. Step 6: Final answer
    x = 124,871.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.