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Finding the Fourth Proportional to 124,430.16, 171,706.22 and 70,707.72

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Solution

The fourth proportional to 124,430.16, 171,706.22 and 70,707.72 is: 97,572.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,430.16 : 171,706.22 = 70,707.72 : x
  2. Step 2: Convert to fraction form
    124,430.16/171,706.22 = 70,707.72/x
  3. Step 3: Cross multiply
    124,430.16x = 171,706.22 × 70,707.72
  4. Step 4: Simplify right side
    124,430.16x = 12,140,955,326.02
  5. Step 5: Solve for x
    x = 12,140,955,326.02/124,430.16
  6. Step 6: Final answer
    x = 97,572.45

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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.