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Finding the Fourth Proportional to 112,938.40, 169,407.60 and 101,533.60

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Solution

The fourth proportional to 112,938.40, 169,407.60 and 101,533.60 is: 152,300.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,938.40 : 169,407.60 = 101,533.60 : x
  2. Step 2: Convert to fraction form
    112,938.40/169,407.60 = 101,533.60/x
  3. Step 3: Cross multiply
    112,938.40x = 169,407.60 × 101,533.60
  4. Step 4: Simplify right side
    112,938.40x = 17,200,563,495.36
  5. Step 5: Solve for x
    x = 17,200,563,495.36/112,938.40
  6. Step 6: Final answer
    x = 152,300.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.