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Finding the Fourth Proportional to 116,297.79, 160,515.95 and 70,966.05

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Solution

The fourth proportional to 116,297.79, 160,515.95 and 70,966.05 is: 97,948.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,297.79 : 160,515.95 = 70,966.05 : x
  2. Step 2: Convert to fraction form
    116,297.79/160,515.95 = 70,966.05/x
  3. Step 3: Cross multiply
    116,297.79x = 160,515.95 × 70,966.05
  4. Step 4: Simplify right side
    116,297.79x = 11,391,182,578.67
  5. Step 5: Solve for x
    x = 11,391,182,578.67/116,297.79
  6. Step 6: Final answer
    x = 97,948.40

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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.