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Finding the Fourth Proportional to 118,122.16, 163,048.08 and 70,390.48

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Solution

The fourth proportional to 118,122.16, 163,048.08 and 70,390.48 is: 97,162.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,122.16 : 163,048.08 = 70,390.48 : x
  2. Step 2: Convert to fraction form
    118,122.16/163,048.08 = 70,390.48/x
  3. Step 3: Cross multiply
    118,122.16x = 163,048.08 × 70,390.48
  4. Step 4: Simplify right side
    118,122.16x = 11,477,032,614.28
  5. Step 5: Solve for x
    x = 11,477,032,614.28/118,122.16
  6. Step 6: Final answer
    x = 97,162.40

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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.