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Finding the Fourth Proportional to 98,892.34, 136,472.08 and 53,570.32

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Solution

The fourth proportional to 98,892.34, 136,472.08 and 53,570.32 is: 73,927.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,892.34 : 136,472.08 = 53,570.32 : x
  2. Step 2: Convert to fraction form
    98,892.34/136,472.08 = 53,570.32/x
  3. Step 3: Cross multiply
    98,892.34x = 136,472.08 × 53,570.32
  4. Step 4: Simplify right side
    98,892.34x = 7,310,852,728.81
  5. Step 5: Solve for x
    x = 7,310,852,728.81/98,892.34
  6. Step 6: Final answer
    x = 73,927.40

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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.