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Finding the Fourth Proportional to 104,465.64, 144,281.28 and 70,415.40

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Solution

The fourth proportional to 104,465.64, 144,281.28 and 70,415.40 is: 97,253.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,465.64 : 144,281.28 = 70,415.40 : x
  2. Step 2: Convert to fraction form
    104,465.64/144,281.28 = 70,415.40/x
  3. Step 3: Cross multiply
    104,465.64x = 144,281.28 × 70,415.40
  4. Step 4: Simplify right side
    104,465.64x = 10,159,624,043.71
  5. Step 5: Solve for x
    x = 10,159,624,043.71/104,465.64
  6. Step 6: Final answer
    x = 97,253.26

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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.