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Finding the Fourth Proportional to 98,574.95, 136,033.28 and 56,133.48

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Solution

The fourth proportional to 98,574.95, 136,033.28 and 56,133.48 is: 77,464.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,574.95 : 136,033.28 = 56,133.48 : x
  2. Step 2: Convert to fraction form
    98,574.95/136,033.28 = 56,133.48/x
  3. Step 3: Cross multiply
    98,574.95x = 136,033.28 × 56,133.48
  4. Step 4: Simplify right side
    98,574.95x = 7,636,021,402.21
  5. Step 5: Solve for x
    x = 7,636,021,402.21/98,574.95
  6. Step 6: Final answer
    x = 77,464.12

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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.