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Finding the Fourth Proportional to 70,866,817.60, 106,300,226.40 and 60,663,150.40

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Solution

The fourth proportional to 70,866,817.60, 106,300,226.40 and 60,663,150.40 is: 90,994,725.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,866,817.60 : 106,300,226.40 = 60,663,150.40 : x
  2. Step 2: Convert to fraction form
    70,866,817.60/106,300,226.40 = 60,663,150.40/x
  3. Step 3: Cross multiply
    70,866,817.60x = 106,300,226.40 × 60,663,150.40
  4. Step 4: Simplify right side
    70,866,817.60x = 6,448,506,621,657,251
  5. Step 5: Solve for x
    x = 6,448,506,621,657,251/70,866,817.60
  6. Step 6: Final answer
    x = 90,994,725.60

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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.